Energy-saving and environment-friendly wind power generation blade assembly

The utility model discloses an energy-saving and environment-friendly wind power generation blade assembly which comprises a blade I. The inner wall of the blade I is fixedly connected with a flat-head triangular connecting piece I. When the wind power generation blade assembly is used, the flat-head triangular connecting piece I is installed on the inner side of the blade I, the inner side of a blade II and the inner side of a blade III; wherein the first flat-head triangular connecting piece and one end of the cavity block are in butt joint with a first cavity triangular block, meanwhile, a mounting cap is mounted on the upper surface of the first cavity triangular block, meanwhile, a rotating shaft rotationally connected to the bottom end of the mounting cap is in butt joint with a second cavity triangular block, the storage battery is controlled to operate, and the second cavity triangular block and the rotating shaft can be driven to rotate; secondly, after the rotating shaft rotates, a first cavity tria